- Update 2.2.0:
* apidoc: template files are renamed to ``.rst_t``
* html: Field lists will be styled by grid layout
* #5124: graphviz: ``:graphviz_dot:`` option is renamed to ``:layout:``
* #1464: html: emit a warning if :confval:`html_static_path` and
:confval:`html_extra_path` directories are inside output directory
* #6514: html: Add a label to search input for accessability purposes
* #5602: apidoc: Add ``--templatedir`` option
* #6475: Add ``override`` argument to ``app.add_autodocumenter()``
* #6310: imgmath: let :confval:`imgmath_use_preview` work also with the SVG
format for images rendering inline math
* #6533: LaTeX: refactor visit_enumerated_list() to use ``\sphinxsetlistlabels``
* #6628: quickstart: Use ``https://docs.python.org/3/`` for default setting of
:confval:`intersphinx_mapping`
* #6419: sphinx-build: give reasons why rebuilded